Buggy code:
public class WizardClass { private ClassPerks gui ; private int wizardXP ; private int level ; private int nextLevel ; private int levelOne = 2500 ; private int levelTwo = 5000 ; private int levelThree = 10000 ; protected List buttonList = new ArrayList ( ) ; private IconButton bone ; private IconButton book ; private IconButton bottle ; private IconButton gun ; private IconButton cauldron ; private IconButton brick ; private IconButton stand ; private IconButton magma ; private IconButton crystal ; private IconButton ghast ; private IconButton spider ; private IconButton slime ; private IconButton fire ; private IconButton enderEye ; private IconButton enderPearl ; private ProgressBar wizard ; public WizardClass ( ClassPerks gui , int wizardXP , int level ) { } public List getButtonList ( ) { int x = ( this . gui . width ) // 2 ; int y = ( this . gui . height ) // 2 ; this . buttonList . add ( ( bone = new IconButton ( ( - 1 ) , ( x - 15 ) , ( y - 90 ) , 20 , 20 , "perkIcons.png" , 0 , 48 , "-10%<seq2seq4repair_space>Skeleton<seq2seq4repair_space>Damage" ) ) ) ; this . buttonList . add ( ( book = new IconButton ( 47 , ( x - 75 ) , ( y - 60 ) , 20 , 20 , "perkIcons.png" , 16 , 48 , "-10%<seq2seq4repair_space>Magic<seq2seq4repair_space>Damage" ) ) ) ; this . buttonList . add ( ( bottle = new IconButton ( 48 , ( x + 45 ) , ( y - 60 ) , 20 , 20 , "perkIcons.png" , 32 , 48 , "Potion<seq2seq4repair_space>of<seq2seq4repair_space>Swiftness" ) ) ) ; this . buttonList . add ( ( gun = new IconButton ( 49 , ( x - 105 ) , ( y - 30 ) , 20 , 20 , "perkIcons.png" , 48 , 48 , "-10%<seq2seq4repair_space>Explosion<seq2seq4repair_space>Damage" ) ) ) ; this . buttonList . add ( ( cauldron = new IconButton ( 50 , ( x - 45 ) , ( y - 30 ) , 20 , 20 , "perkIcons.png" , 64 , 48 , "+10%<seq2seq4repair_space>Damage<seq2seq4repair_space>On<seq2seq4repair_space>Witch" ) ) ) ; this . buttonList . add ( ( brick = new IconButton ( 51 , ( x + 15 ) , ( y - 30 ) , 20 , 20 , "perkIcons.png" , 80 , 48 , "Potion<seq2seq4repair_space>of<seq2seq4repair_space>Fire<seq2seq4repair_space>Resistance" ) ) ) ; <START_BUG> this . buttonList . add ( ( stand = new IconButton ( 52 , ( x + 75 ) , ( y - 30 ) , 20 , 20 , "perkIcons.png" , 96 , 48 , "Potin<seq2seq4repair_space>of<seq2seq4repair_space>Strength" ) ) ) ; <END_BUG> this . buttonList . add ( ( enderPearl = new IconButton ( 60 , ( x + 90 ) , y , 20 , 20 , "perkIcons.png" , 224 , 48 , "Potion<seq2seq4repair_space>of<seq2seq4repair_space>Night<seq2seq4repair_space>Vision" ) ) ) ; this . buttonList . add ( ( enderEye = new IconButton ( 59 , ( x + 60 ) , y , 20 , 20 , "perkIcons.png" , 208 , 48 , "Potion<seq2seq4repair_space>of<seq2seq4repair_space>Luck" ) ) ) ; this . buttonList . add ( ( fire = new IconButton ( 58 , ( x + 30 ) , y , 20 , 20 , "perkIcons.png" , 192 , 48 , "Potion<seq2seq4repair_space>of<seq2seq4repair_space>Invisibility" ) ) ) ; this . buttonList . add ( ( slime = new IconButton ( 57 , x , y , 20 , 20 , "perkIcons.png" , 176 , 48 , "Potion<seq2seq4repair_space>of<seq2seq4repair_space>Leaping" ) ) ) ; this . buttonList . add ( ( spider = new IconButton ( 56 , ( x - 30 ) , y , 20 , 20 , "perkIcons.png" , 160 , 48 , "+10%<seq2seq4repair_space>Damage<seq2seq4repair_space>on<seq2seq4repair_space>Spiders" ) ) ) ; this . buttonList . add ( ( ghast = new IconButton ( 55 , ( x - 60 ) , y , 20 , 20 , "perkIcons.png" , 144 , 48 , "-10%<seq2seq4repair_space>Ghast<seq2seq4repair_space>Damage" ) ) ) ; this . buttonList . add ( ( crystal = new IconButton ( 54 , ( x - 90 ) , y , 20 , 20 , "perkIcons.png" , 128 , 48 , "+10%<seq2seq4repair_space>Damage<seq2seq4repair_space>on<seq2seq4repair_space>Blaze" ) ) ) ; this . buttonList . add ( ( magma = new IconButton ( 53 , ( x - 120 ) , y , 20 , 20 , "perkIcons.png" , 112 , 48 , "-10%<seq2seq4repair_space>Fire<seq2seq4repair_space>Damage" ) ) ) ; renderTree ( ) ; return buttonList ; } public void render ( ) { } private void renderTree ( ) { } }

Fix:
this . buttonList . add ( ( stand = new IconButton ( 52 , ( x + 75 ) , ( y - 30 ) , 20 , 20 , "perkIcons.png" , 96 , 48 , "Potion<seq2seq4repair_space>of<seq2seq4repair_space>Strength" ) ) ) ;